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The device tree on Apple silicon devices is passed from a previous bootloader stage. The bootloader fills in dynamic information so u-boot can not use its own device tree. As documented in doc/board/apple/m1.rst it is possible to build boot bundles (bootloader + device tree + gzipped u-boot binary). These are useful for testing. Instead of using u-boot's own device trees for M1 (t8103) devices use upstream device trees from dts/upstream/src/arm64/apple. The u-boot device trees have not seen updates since 2022. The upstream linux device trees have feature parity for the M1 devices. In addition linux has device trees for M1 Pro/Max/Ultra, M2 and M2 Pro/Max/Ultra devices. Keep t8103-j274 as default device tree to avoid further updates. Signed-off-by: Janne Grunau <j@jannau.net> Acked-by: Mark Kettenis <kettenis@openbsd.org>
This patch series adds support for ZFS listing and load to u-boot. To Enable zfs ls and load commands, modify the board specific config file with #define CONFIG_CMD_ZFS Steps to test: 1. After applying the patch, zfs specific commands can be seen in the boot loader prompt using UBOOT #help zfsload- load binary file from a ZFS file system zfsls - list files in a directory (default /) 2. To list the files in zfs pool, device or partition, execute zfsls <interface> <dev[:part]> [POOL/@/dir/file] For example: UBOOT #zfsls mmc 0:5 /rpool/@/usr/bin/ 3. To read and load a file from an ZFS formatted partition to RAM, execute zfsload <interface> <dev[:part]> [addr] [filename] [bytes] For example: UBOOT #zfsload mmc 2:2 0x30007fc0 /rpool/@/boot/uImage References : -- ZFS GRUB sources from Solaris GRUB-0.97 -- GRUB Bazaar repository Jorgen Lundman <lundman at lundman.net> 2012.